Solidifing agent of modified like epoxy resins by alcyl amine

Abstract

The invention is an alicyclic amine modified epoxy resin hardener, using aminomethyl cyclopentamine as material for modification. Its characteristic: it is synthesized of epoxy resin active diluting agents like aminomethyl cyclopentamine, alkyl alcohol glycidyl ether / organic acid glycidic ester, etc, and / or small molecular weight epoxy resin, and other raw materials. The hardener has moderate active hydrogen equivalent, low viscosity, and hardens at normal temperature, and the hardening course has the characters of low heat release, no toxic and excitive volatile, being uneasy to absorb moisture and blush, good compatibility with the epoxy resin, condensate with light colors and even colorless, etc, and it is an environmental protection hardener. It shows very good performance as used in self-leveling coating and ordinary floor coating, electronic sealing material, handicraft decoration, etc.

Description

technical field [0001] The invention belongs to the field of epoxy resin curing materials, and relates to the application of epoxy resin-based adhesives, coatings, potting materials, decorations, etc., and the specific content is alicyclic amine modified epoxy resin curing agent and its preparation method. Background technique [0002] There are many types of epoxy resin curing agents used for bonding, potting and coating at room temperature, usually belonging to organic aliphatic amines or their modified products, with simple bonding process, excellent bonding strength, small shrinkage, and mechanical properties , dielectric properties, good chemical stability, etc., but there are easy to change color, moisture absorption, whitening, irritating volatiles, and some even add environmental pollution and threat to human health due to high viscosity or system requirements. Organic solvents are used as diluents; for floor coating topcoats and handicraft decoration, not only high...

AI Technical Summary

Problems solved by technology

[0002] There are many types of epoxy resin curing agents used for bonding, potting and coating at room temperature, usually belonging to organic aliphatic amines or their modified products, with simple bonding process, excellent bonding strength, small shrinkage, and mechanical properties , dielectric properties, good chemical stability, etc., but there are easy to change color, moisture absorption, whitening, irritating volatiles, and some even add environmental pollution and threat to human health due to high viscosity or system requirements. Organic solvents are used as diluents; for floor coating topcoats and handicraft decoration, not only high bond strength is required, but also good smoothness, color stability, light color or colorless, and the cured product should also be considered to have relatively good toughness , especially in the field of potting and pouring, the flexibility requirements are more prominent. Usually, most people use alicyclic amines or their modified products. At present, most of the alicyclic amine curing agents used are organic amines with hexane rings. Classes and their modified products